Service Mode (Electronic Controls); Quick Entry To Service Mode; To Toggle Between Aging And Service Modes; Exiting The Service Mode - Panasonic CT-32SC13-1U Service Manual

Service mode (electronic controls)

This receiver has electronic technology using the I²C
bus concept. It performs as a control function and it
replaces many mechanical controls. Instead of
adjusting mechanical controls individually, many of the
control functions are now performed by using "on
screen display menu". (The service adjustment
mode).
Note: It is suggested that the technician
reads all
understand the following procedure for
entering/exiting
adjustment mode; then proceed with
the instructions working with the
receiver. When becoming familiar with
the procedure, the flow chart for
service mode may be used as a quick
guide.

Quick entry to service mode:

When minor adjustments need to be done to the
electronic controls, the method of entering the service
mode without removal of the cabinet back is as follows
using the remote control:
1. Select SET-UP icon and select CABLE mode.
2. Select TIMER icon and set SLEEP time for 30 Min.
3. Press "ACTION" twice to exit menus.
4. Tune to the channel 124.
5. Adjust VOLUME to minimum (0).
6. Press VOL (decrease) on receiver. Red "CHK"
appears in upper corner.+
Note: After receiver is set into service mode,
set TIMER back to NO.
To toggle between aging and service
modes:
While the "CHK" is displayed on the left top corner
of the CRT, pressing "ACTION" and "VOL" up on the
TV simultaneously will toggle between the modes.
Red "CHK" for service and yellow "CHK" for aging.
7. Press POWER on the remote control to display
the service adjustment modes menu, select
adjustment by pressing the volume right/left
buttons and channel up/down buttons on the
remote and ACTION to enter the adjustment.
the way through and
the service
MTS MTSIN SEPAL
CLOCK CLOCK
VIDEO COLOR
B-Y_G CUT_G CUT_R CUT_B
BRT
PIP PCONT
HDEF H-POS H-WID
TOPG
FINE PCCHG PCCLG PCCHS PCCLS
TOPSL BTMSL
VDEF VRAS
DAF HDAFS
CTEMP WARMR WARMB COOLR COOLB
Figure 20. Service mode menu adjustments.

Exiting the service mode:

This TV goes out from service mode when it is
unplugged or turned OFF. To exit the service mode,
turn the TV OFF or unplug the TV from AC.
Other method
Press ACTION and POWER on the receiver
simultaneously for at least 2 seconds.
The receiver momentarily shuts off; then comes back
on tuned to channel 3 with a preset level of sound.
Any programmed channels, channels caption data and
some others user defined settings will be erased when
exited by pressing ACTION and POWER on receiver.
IMPORTANT NOTE:
Always check that the TV exits the
service mode.

To check colors:

Press RECALL on the remote control when in service
mode (red "CHK" is displayed) to enter the purity field
check mode.
Press RECALL again to select desired field.
BLUE GRN.
SCREEN SCREEN
Figure 21. Purity check field mode.
Helpful hints

Entering service mode (open-back method)

• While the receiver is connected and operating in
normal mode, momentarily short test point
FA1 (A15 pin 2) to cold ground (
The receiver enters the aging mode .
Yellow letters "CHK" appear in the upper left corner of
the screen.
(The VOLUME up/down will adjust rapidly).
Note: When entering using this method, the only
way to go out of service mode is to press
ACTION and POWER on the receiver
simultaneously for at least 2 seconds.
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SEPAH
HHSTH
TINT BRIGH CONT
R-DR B-DR
PCC
BTMG TRAP
SIDE HTRAP
VEAMP V-C V-S
VDAFG VPOS
NORMAL
SCREEN
RED WHITE
SCREEN SCREEN
) (A-Board).